Patents by Inventor James E. March

James E. March has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Door latch having three-way actuation means
    Patent number: 4072331
    Abstract: A latch is provided for a door of a cab of a vehicle, such as a track loader, or the like. The latch is provided with external actuating means, internal actuating means and a third override actuating means, the third override actuating means being operative even though either or both of the internal and external actuating means are inoperative.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: February 7, 1978
    Assignee: Caterpillar Tractor Co.
    Inventors: Max E. Butterfield, Robert M. Alt, James E. March